KR101025037B1 - Transparent ornament and method for manufacturing the same - Google Patents

Abstract

PURPOSE: A transparent ornament and a method for manufacturing the same are provided to improve stereoscopic effect without a process of plane image to stereoscopic image and to reduce the time and costs required for manufacturing the transparent ornament. CONSTITUTION: A plane image for forming a shape layer is inputted to an image processing apparatus(S10). A formation part of a deformation portion is selected, the whole or a part of the plane image can be selected, and the image processing of the selected part is operated(S30). The information about location change of a perspective direction is inserted into the selected part. The shape layer is formed within the transparent body by laser beam irradiation(S50).

Description

Transparent decoration and its manufacturing method {TRANSPARENT ORNAMENT AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a transparent decoration and a method for producing the same.

When the laser beam is irradiated to focus on an internal point of a transparent material (hereinafter referred to as a 'transparent body') such as glass, crystal glass, acrylic, etc., it is transparent by the energy of the laser beam at the focused area. Fine cracks are formed in the material.

These fine cracks reflect or diffusely reflect light incident on the transparent body in different directions. Therefore, the desired shape can be formed in the transparent body by shifting the focus of the laser beam and generating a plurality of cracks in the transparent body. At present, transparent decorations having an arbitrary shape (hereinafter, referred to as a 'shape layer') inside the transparent body using this method are widely used.

1 illustrates a planar image, FIG. 2 illustrates a conventional transparent decoration in which a shape layer is formed along the shape of the planar image of FIG. 1, and FIG. 3 illustrates a side view of the transparent decoration shown in FIG. 2. have. It demonstrates with reference to FIGS. 1-3.

The shape layer 110 is formed by a plurality of cracks formed in the transparent body 101 using the laser beam as described above. The shape layer 110 sets coordinates at which the laser beam is to be irradiated into the transparent body 101 according to the shape to be formed, and then sets coordinates where the focal position of the laser beam irradiated by the laser irradiation device (not shown) is set. It controls to move along and forms by irradiating a laser beam.

At this time, the laser irradiation device intermittently irradiates the laser beam. That is, when one crack is formed in the transparent body 101, the laser irradiation apparatus stops irradiation of the laser beam, moves the laser beam irradiation unit (not shown) to a position to form the next crack, and then irradiates the laser beam again. Works.

The planar image 10 is an original image of the shape layer 110 formed in the transparent body 101. That is, the planar image 10 is converted into processing data for operating the laser irradiation apparatus and input to the controller of the laser irradiation apparatus.

However, when the original image of the shape layer 110 is the planar image 10, the shape layer 110 also has a planar shape. That is, as shown in FIG. 3, when the transparent decoration 100 is viewed from the side, the shape layer 110 has a straight shape.

If the shape layer 110 is a planar shape, the decorative effect of the transparent decoration 100 is not only monotonous but also has a disadvantage in that it does not fully utilize the thickness of the transparent body (101).

In order to alleviate these drawbacks, recently, transparent decorations having three-dimensional shapes have been disclosed so that an image to be displayed is almost similar to a real object. However, forming a three-dimensional shape almost similar to the real thing in the transparent body requires much more time and effort than forming a planar shape layer, and thus has the disadvantage that the price of the transparent decoration is greatly increased.

According to the present invention, by forming a deformation portion whose position is changed in the perspective direction from a planar image to a shape layer formed on the transparent body, a transparent that can reduce time and cost compared to the production of a three-dimensional shape while improving the three-dimensional appearance compared to the planar layer Ornaments and methods of making the same are provided.

According to an aspect of the invention, the step of inputting a plane image; Forming a shape layer with a laser beam in the transparent body in accordance with the shape of the planar image is provided, wherein at least a portion of the shape layer is provided with a position change in the perspective direction is provided.

The shape layer may be changed into at least one of a planar shape and a linear shape, and at least one of the planar shape and the linear shape may include an uneven portion or a curved portion.

The shape layer may be formed in plural.

Some of the region of the shape layer formed while being changed in the perspective direction may be formed in a three-dimensional shape.

The method includes inputting a background image different from the plane image; And forming a background layer with a laser beam in the transparent body according to the shape of the background image.

The background layer may include a background deformation part that is changed in position in the perspective direction.

A part of the background deformation part may be formed in a three-dimensional shape.

The brightness of the portion overlapping the shape layer when viewed in the perspective direction of the background layer may be lower than the brightness of the portion not overlapping.

A portion of the background layer that does not overlap with a portion overlapping with the shape layer when viewed in the perspective direction may have a change in brightness.

According to another aspect of the invention, the transparent body; And a shape layer formed in the transparent body along a shape of a planar image, wherein at least a portion of the shape layer is deformed and positioned in a perspective direction.

The shape layer may include at least one of a planar shape and a linear shape, and at least one of the planar shape and the linear shape may include an uneven portion or a curved portion.

The shape layer may be formed in plural.

A portion of the deformable portion may be formed in a three-dimensional shape.

The transparent decoration may further include a background layer formed in the transparent body in the form of a background image different from the plane image.

The background layer may include a background deformation part that is changed in position in the perspective direction.

A part of the background deformation part may be formed in a three-dimensional shape.

The brightness of the portion overlapping the shape layer when viewed in the perspective direction of the background layer may be lower than the brightness of the portion not overlapping.

A portion of the background layer that does not overlap with a portion overlapping with the shape layer when viewed in the perspective direction may have a change in brightness.

According to an embodiment of the present invention, by changing the position or all of the shape layer in the perspective direction can improve the three-dimensional appearance of the transparent decoration without processing the planar image to a three-dimensional image, the time required to manufacture the transparent decoration And effort can be saved.

In addition, by forming a background layer behind the shape layer according to the shape of the planar image and other background image, it is possible to further improve the three-dimensional appearance of the transparent decoration.

1 illustrates a planar image.
Figure 2 is a perspective view illustrating a conventional transparent decoration of Figure 1;
Figure 3 is a side view of the transparent decoration shown in FIG.
4 is a perspective view of a transparent ornament according to an embodiment of the present invention.
Figure 5 is a side view of the transparent decoration shown in FIG.
6 is a plan view of the transparent decoration shown in FIG.
7 is a flow chart for explaining a method for manufacturing a transparent decoration according to an embodiment of the present invention.
8 is a perspective view of a transparent decoration according to another embodiment of the present invention.
9 is a side view of the transparent decoration shown in FIG.
10 is a perspective view of a modification of the transparent decoration according to another embodiment of the present invention.
11 is a side view of a modification of the transparent decoration shown in FIG. 10.
12 is a flowchart illustrating a method of manufacturing a transparent decoration according to another embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view of a transparent ornament according to an embodiment of the present invention, Figure 5 is a side view of the transparent ornament shown in Figure 4, Figure 6 is a plan view of the transparent ornament shown in FIG. It demonstrates with reference to FIGS. 4-6.

Transparent decoration 200 according to an embodiment of the present invention includes a transparent body 201 and a shape layer 210 formed in the transparent body.

The transparent body 201 may be made of various transparent materials such as crystal glass and acrylic. The transparent body 201 referred to in the present specification includes additives such as pigments and metal ions so as to have a predetermined color by including additives such as lead oxide in glass such as crystal glass to have high transparency. It includes all the things including the transparency lowered. That is, the transparent body 201 refers to all those having transparency enough to visually identify the shape layer 210 formed therein.

The shape layer 210 is formed along the shape of the planar image (10 in FIG. 1) as an original image. The shape layer 210 may include the deformable parts 211, 212, and 213, and may further include the undeformed part 214.

Here, the planar image 10 is converted into image data such as still images taken by a general camera or still images taken by a camcorder, and can be image processed by an image processing apparatus such as a computer. Contains an image.

That is, the planar image 10 is a scanner for not only a hand-made picture, a printed matter printed on paper, such as a book or a newspaper, a photo taken with a camera, and a photo printed on a photo paper, but also an image, a print, or a picture taken with a digital camera. It includes all the image data obtained by inputting to a data processing device such as.

5 and 6, the first to third deformable parts 211, 212, and 213 forming the deformable part may be deformed by changing in a perspective direction with respect to the undeformed part 214. Here, the perspective direction refers to a direction perpendicular to the undeformed portion 214 having a planar shape, and refers to a direction in which the user mainly looks when the user looks at the shape layer 210 in the transparent decoration 200.

However, when the user looks at the transparent decoration 200, the user may look only at the front of the perspective direction, but also at the perspective direction and the inclined direction at an angle, so that the deformation part may consider the inclined gaze direction to give a three-dimensional effect. It is preferably formed.

As shown in the figure, only a part of the shape layer 210 may be formed as the deformation portion, or the whole may be formed as the deformation portion. When the whole is formed as a deformable portion, the shape layer 210 does not include the undeformed portion 214. In this case, the shape layer 210 may give a three-dimensional effect such as relief as a whole.

On the other hand, when only a part of the shape layer 210 is formed as the deformable part as in the present embodiment, it is effective to select only the part that can highlight the three-dimensional characteristics and form the deformed part.

For example, in the planar image (10 of FIG. 1), which is the original image of the shape layer 210, as shown in FIG. By forming each of 211, 212, and 213, the three-dimensional appearance of the shaped layer 210 can be improved.

The first to third deformable parts 211, 212, and 213 may be deformed in various forms with respect to the undeformed part 214. For example, it may include a planar shape like the first and second deformable parts 211 and 212, and may include a linear shape like the third deformable part 213. As a matter of course, the concave-convex portion or the curved portion may be formed in the surface shape or the linear shape.

When a plurality of deformations are formed, each of the deformations may be continuous with each other in the perspective direction or may be spaced apart from each other at an appropriate interval. If it is continuous with each other, the three-dimensional sense of each of the deformable portions may be highlighted uniformly, and if the appropriate spacing of the three-dimensional feeling of each of the deformable portions may be independently highlighted.

7 is a flowchart illustrating a method of manufacturing a transparent decoration according to an embodiment of the present invention.

Referring to FIG. 7, the method of manufacturing a transparent decoration according to an embodiment of the present invention includes the steps of inputting a planar image (S10), selecting a portion to form a foreground deformation unit, and performing image processing (S30); Forming a shape layer on the transparent body (S50).

Inputting the planar image (S10) refers to inputting the planar image (10 of FIG. 1) used to form the shape layer 210 of FIG. 4. That is, the planar image 10 is input to an image processing apparatus (not shown) such as a computer in which software for editing image data is stored.

In this case, when the planar image 10 is a hand-drawn picture or printed matter such as a book or newspaper, the planar image 10 is converted into image data using a data processing device such as a scanner or a digital camera or an image input device (not shown), and then the image. Enter into the processing unit.

The step S30 of selecting a part to form the deformation part and performing image processing is as follows.

First, when the shape layer 210 is formed in the transparent body 201 according to the shape of the planar image 10 input to the image processing apparatus, a portion to form the deformable parts 211, 212, and 213 is selected. In this case, as described above, the entire planar image 10 may be selected or a part thereof may be selected.

Next, the portion of the planar image 10 that is selected as the portion where the deformable parts 211, 212, and 213 are to be formed is image-processed. That is, information about the degree of change in the position in the perspective direction is inserted into the selected portion of the planar image 10. Therefore, the image data of the planar image 10 after the image processing includes information about the degree of change in the position in the perspective direction.

Forming the shaped layer on the transparent body (S50) refers to the step of forming the shaped layer 210 in the transparent body 201 by irradiating a laser beam with a laser irradiation device.

As described above, when the image data of the planar image 10 after the image processing is converted into processed data and input to the control unit of the laser irradiation apparatus, the laser irradiation apparatus irradiates a laser beam to the transparent body 201 to form cracks. The shape layer 210 is formed.

At this time, the deformable portions 211, 212, 213 are irradiated while the laser irradiation apparatus changes the focal point of the laser beam in the perspective direction according to the information on the degree of the position change in the perspective direction described above, It is formed as the position changes.

As such, when the transparent decoration 200 is manufactured using the transparent decoration manufacturing method according to an embodiment of the present invention, the deformable parts 211, 212, and 213 are positioned in the perspective direction with respect to the undeformed part 214. By changing and forming, a three-dimensional impression can be provided.

The image processing apparatus as described above may be integrally formed with the laser irradiation apparatus. That is, by adding the input / output means to the laser irradiation apparatus, the part corresponding to the deformation part is selected from the input planar image to obtain image data whose position is changed in the perspective direction, and accordingly, a shape layer is formed on the transparent body. Processes included in the method for manufacturing a transparent decoration according to the can be carried out quickly and easily.

As described above, the transparent decoration and the manufacturing method thereof according to the present embodiment are formed by changing the position of the crack in the perspective direction only by forming all or part of the shape layer formed in the transparent body. It can improve the three-dimensional appearance of the transparent decoration without forming a.

8 is a perspective view of a transparent ornament according to another embodiment of the present invention, Figure 9 is a side view of the transparent ornament shown in FIG. It demonstrates with reference to FIG. 8 and FIG.

8 and 9, the transparent decoration 300 includes a transparent body 301 and a shape layer 310 and a background layer 320 formed in the transparent body.

Since the transparent body 301 is the same as the transparent body 201 of FIG. 4 described with reference to FIG. 4, redundant description is omitted.

The shape layer 310 is formed along the shape of the planar image (10 in FIG. 1) as an original image. The shape layer 310 may include a first deformation part 311, a second deformation part 312, and a third deformation part 313 constituting the deformation part, and may further include an undeformation part 314. have. The first deformed portion 211, the second deformed portion 212, the third deformed portion 213, and the undeformed portion 214 of the shape layer (210 of FIG. 4) described with reference to FIGS. 4 to 6 may be formed. Since the shape and formation method are the same, the overlapping description is omitted.

The background layer 320 includes a background portion 321 and an overlapping portion 322.

The background layer 320 is formed by irradiating a laser beam into the transparent body 301 along the shape of a background image (not shown), which is a plane image different from the plane image 10. Here, the background image may be converted into processed data and input to the control unit of the laser irradiation apparatus, similar to the planar image 10. The planar image 10 and the background image are preferably different, but may also be distinct parts of the same image.

The background layer 320 is preferably formed to be spaced apart from the shape layer 310 in the perspective direction, that is, spaced apart from each other. Therefore, when the user looks at the transparent decoration 300 in the perspective direction, the shape layer 310 appears to protrude or dent with respect to the background layer 320, and thus the three-dimensional appearance of the shape layer 310 is further increased. The transparent decoration 300 according to the present exemplary embodiment shows an example in which the shape layer 310 protrudes forward than the background layer 320 when viewed in the perspective direction.

The planar image 10 and the background image are preferably related to each other in order to enhance the decorative effect of the transparent decoration 300. For example, if the shape layer 310 is in the shape of a rabbit, the background layer 320 may have a shamrock shape or a moon surface shape.

As described above, the shape layer 310 and the background layer 320 are formed by integrating a plurality of minute cracks formed in the transparent body 301 by a laser irradiation apparatus. The part where the cracks are accumulated at high density increases the diffuse reflection of light, and the part where the crack density is low decreases the brightness. The shape layer 310 and the background layer 320 express the desired shape by using the brightness difference.

Except when the shape layer 310 is formed by cracks having a very high density, light diffused from the background layer 320 is transmitted through the shape layer 310 when the transparent decoration 300 is viewed in a perspective direction. Can be seen to That is, when the transparent decoration 300 is viewed from the perspective direction, the shape layer 310 and the background layer 320 overlap with each other, and the shapes represented by the shape layer 310 and the background layer 320 are simultaneously seen. The sharpness of layer 310 may be degraded. For example, in the present embodiment, the sharpness of the rabbit, which is the shape layer 310, may be degraded due to the shape of the shamrock forming the background layer 320.

In order to solve this problem, the overlapping portion 322 may be formed in the background layer 320. That is, the overlapping portion 322 is formed in the region overlapping with the shape layer 310 when the transparent plant 300 is viewed in the perspective direction of the background layer 320. By adjusting the brightness of the overlapping part 322 to be lower than the brightness of the non-overlapping area, that is, the background part 321, the sharpness of the shape layer 310 may be prevented from falling due to the background layer 320.

However, when the brightness of the overlapping part 322 is significantly different from the brightness of the background part 321, the background part 321 and the overlapping part when the user sees the transparent decoration 300 in an inclined direction with respect to the perspective direction. The decorative effect may be degraded by the difference in brightness of the boundary portion of the portion 322. In this case, the brightness of the edge portion of the overlapping portion 322 is the same as the background portion 321, and the brightness of the overlapping portion 322 is continuously changed so that the brightness gradually changes toward the center area. And a severe brightness difference at the boundary portion of the overlapping portion 322.

In addition, by making the gap between the shape layer 310 and the background layer 320 very small, the unity of the shape layer 310 and the background layer 320 may be improved. In this case, the brightness difference of the boundary area between the shape layer 310 and the background layer 320 may be increased or decreased depending on the type of the image represented by the shape layer 310 and the background layer 320.

10 shows a modification of the transparent decoration according to another embodiment of the present invention, Figure 11 shows its side.

In the modified example of the transparent decoration 300 shown in FIGS. 10 and 11, the background deformation part 323 is further formed on the background layer 320 of the transparent decoration 300 described with reference to FIGS. 8 and 9. Therefore, like reference numerals refer to like elements, and descriptions of overlapping parts will be omitted.

The background deformable part 323 is formed by changing a part of the background layer 320 in the perspective direction, and improves the three-dimensional appearance of the background layer 320 to increase the overall decorative effect of the transparent decoration 300.

For example, if the background deformable portion 323 has a shape that protrudes forward from the lower side of the shape layer 310 as shown, the rabbit represented by the shape layer 310 is placed on the shamrocks represented by the background layer 320. The realism as it is can be further enhanced. Here, if the background deformation portion 324 protrudes obliquely, perspective may be further improved.

In addition, the background deformation unit 323 may be deformed and deformed according to the contents represented by the shape layer 310 and the background layer 320. For example, when the shape to be expressed by the background layer is the surface of the moon on which the crater is formed, the crater may be recessed in the perspective direction as the background deformation part to further improve the three-dimensional and realism.

Background deformable portion 323 is preferably formed in a position that does not overlap the shape layer 310 when viewed from the perspective of the transparent decoration, but is not necessarily limited thereto.

In order to provide a rich three-dimensional effect, a plurality of shape layers and a background deformation part may be formed. In this case, each shape layer and each background deformation part may be formed continuously or spaced apart from each other. In this case, the shape layer and the background layer may each be formed from the same image or may be formed from different images.

12 is a flowchart illustrating a method of manufacturing a transparent decoration according to another embodiment of the present invention. It demonstrates with reference to FIGS. 8-11.

Referring to FIG. 12, according to another embodiment of the present disclosure, a method of manufacturing a transparent decoration includes inputting a plane image (S11), inputting a background image (S21), and selecting a portion to form a deformation part. And forming an image layer (S31) and a background layer on the transparent body (S31). The method may further include a step (S41) of selecting and image processing a portion to form a background deformation part before the forming of the shape layer and the background layer (S51).

Here, the step of inputting the planar image (S11) and the step of selecting and image-processing the portion to form the deformation unit (S31) include the step of inputting the planar image included in the method described with reference to FIG. 7 (S10) and the deformation. Since it is the same as selecting each part to form the part and processing the image (S30), overlapping description is omitted.

In the step S21 of inputting a background image, a background image (not shown) to be formed as the background layer 320 is input to an image processing apparatus (not shown) in the same manner as in the case of the planar image 10 input. .

In the step S41 of selecting and image-processing the part to form the background deformation part, as in the step S31 of selecting and image-processing the part to form the deformation part described above, all of the background image shape input to the image processing apparatus is input. Alternatively, a part is selected as a part corresponding to the background deformation part 323, and information about the degree to which the position changes in the perspective direction is inserted into the image data of the selected part.

In the step S51 of forming the shape layer and the background layer on the transparent body, the laser beam is irradiated with the laser irradiation apparatus to form the shape layer 310 and the background layer 320 in the transparent body 301. That is, the image data of the planar image 10 and the background image after the image processing as described above are converted into processed data, respectively, and these are input to the control unit of the laser irradiation apparatus to form the shape layer 310 and the background in the transparent body 301. Allow layer 320 to be formed.

In FIG. 12, the order of inputs S11 and S21 of the planar image and the background image and the order of the image processing S31 and S41 are for convenience of description and are not limited to a specific order. Similarly, formation of the shape layer and the background layer is not limited to a specific order.

The embodiments described above are related to the case where the deformation portion is formed in the shape layer in order to give a three-dimensional feeling without using a three-dimensional shape, but the present invention is not limited thereto. For example, when a part of the deformation portion is formed in a three-dimensional shape, the three-dimensional feeling of the shape layer can be further improved. For example, when a soccer player shapes an image of kicking a ball, all or part of a soccer player's body may be formed as a deformable portion, and only the ball may be formed in a three-dimensional shape. Alternatively, all or part of the other part of the footballer's body may be formed as a deformable part, and only the leg and the ball that kick the ball may be formed in a three-dimensional shape. In this case, the portions formed in the three-dimensional shape may be continuous with the remaining portions or spaced at appropriate intervals according to the requirements of unity or uniqueness of the three-dimensional feeling. This ensures a three-dimensional effect comparable to the three-dimensional shape with little effort and cost compared to the case of forming the entire image in a three-dimensional shape. This example can be similarly applied to the case of the background deformation part.

Although the transparent decoration according to an embodiment of the present invention and a method for producing the same have been described, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention Within the scope, other embodiments may be easily proposed by adding, changing, deleting, adding, or the like, but this is also within the scope of the present invention.

200, 300: transparent decoration 201, 301: transparent body
210 and 310: shape layers 211 and 311: first deformable portion
212 and 312: second deformable portion 213 and 313: third deformed portion
214 and 314: undeformed portion 320: background layer
321: background portion 322: overlapping portion
323: background deformation

Claims (20)

Inputting a planar image;
Forming a shape layer with a laser beam in the transparent body along the shape of the planar image,
At least a portion of the shape layer is a method of manufacturing a transparent decoration, characterized in that formed in the perspective direction change. The method of claim 1,
The shape layer is a method of manufacturing a transparent decoration, characterized in that changed to at least one of the shape of the plane and the shape of the line. The method of claim 2,
At least one of the surface and linear shape manufacturing method of the transparent decoration, characterized in that it comprises an uneven portion or bent portion. The method of claim 1,
The shape layer is a method of manufacturing a transparent decoration, characterized in that formed in plural. The method of claim 1,
A method of manufacturing a transparent decoration, characterized in that some of the region of the shape layer is changed in the perspective direction is formed in a three-dimensional shape. The method according to any one of claims 1 to 5,
Inputting a background image different from the plane image; And
And forming a background layer with a laser beam in the transparent body in accordance with the shape of the background image. The method of claim 6,
The background layer is a method of manufacturing a transparent decoration, characterized in that it comprises a background deformation portion that is changed in the perspective direction. The method of claim 7, wherein
Part of the background deformation portion is a method of manufacturing a transparent decoration, characterized in that formed in a three-dimensional shape. The method of claim 6,
The brightness of the part which overlaps with the said shape layer when seen from the said perspective direction of the said background layer is lower than the brightness of the part which does not overlap, The manufacturing method of the transparent decoration. The method of claim 6,
A portion of the background layer that is not overlapped with a portion overlapping with the shape layer when viewed in the perspective direction has a method of producing a transparent decoration, characterized in that it has a continuous change in brightness. Transparent body; And
A shape layer formed in the transparent body in the form of a planar image,
At least a portion of the shape layer is transparent decoration, characterized in that it comprises a deformation formed and positioned in the perspective direction. The method of claim 11,
The decorative layer is transparent decoration, characterized in that it comprises at least one of the surface shape and linear shape. The method of claim 12,
At least one of the surface shape and the linear shape transparent decoration, characterized in that it comprises an uneven portion or bent portion. delete The method of claim 11,
Part of the deformation portion is a transparent decoration, characterized in that formed in a three-dimensional shape. The method according to any one of claims 11 to 15,
Transparent decoration, characterized in that it further comprises a background layer formed in the transparent body in the form of a background image different from the plane image. The method of claim 16,
The background layer is transparent decorative, characterized in that it comprises a background deformation portion that is changed in the perspective direction. The method of claim 17,
Part of the background deformation portion is a transparent decoration, characterized in that formed in a three-dimensional shape. The method of claim 16,
The brightness of the part overlapping with the shape layer when viewed in the perspective direction of the background layer, the transparent decoration, characterized in that lower than the brightness of the non-overlapping portion. The method of claim 16,
The transparent decoration, characterized in that the portion of the background layer and the portion that does not overlap with the overlapping shape layer when viewed in the perspective direction has a continuous change in brightness.

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